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Finding the Fourth Proportional to 952.96, 1,315.56 and 658.12

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Solution

The fourth proportional to 952.96, 1,315.56 and 658.12 is: 908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.96 : 1,315.56 = 658.12 : x
  2. Step 2: Convert to fraction form
    952.96/1,315.56 = 658.12/x
  3. Step 3: Cross multiply
    952.96x = 1,315.56 × 658.12
  4. Step 4: Simplify right side
    952.96x = 865,796.35
  5. Step 5: Solve for x
    x = 865,796.35/952.96
  6. Step 6: Final answer
    x = 908.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.